Official NHA Assessment

Race 3: BET WITH TAB PINNACLE STAKES (Open to all horses)

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Line Horse
Captain Of Stealth
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
4 / 8
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Captain's Ransom     4    59.0    1    0.00     3.5   124   99           99    -25
2    FireAlley            7    60.0    2    2.25     0.0   110   111          111   +1
3    Captain Of Stealth   5    58.0    3    3.00     0.0   106   106          106   +0
4    Future Prince        3    54.0    4    3.20     6.0   97    86           87    -10
5    Do It Again          7    62.0    5    4.45     0.0   126   112          116   -10
6    Waterberry Lane      6    62.0    6    4.95     0.0   117   112          112   -5
7    Gainsford            4    54.0    7    9.20     3.5   100   89           90    -10
8    One Way Traffic      4    60.0    8    13.45    3.5   111   101          101   -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain's Ransom 124 124 99 +25 3.5 -
2 FireAlley 110 107 111 -4 0.0 -
3 Captain Of Stealth Line 106 100 106 -6 0.0
4 Future Prince 97 93 87 +6 6.0 -
5 Do It Again 126 121 116 +5 0.0 -
6 Waterberry Lane 117 108 112 -4 0.0 -
7 Gainsford 100 88 90 -2 3.5 -
8 One Way Traffic 111 109 101 +8 3.5 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points